Android JUnit Testing,在assertThat中无法解析是(boolean)吗？

Question

在build.gradle中

dependencies {    
    testCompile 'junit:junit:4.12'
    testCompile 'org.mockito:mockito-core:1.10.19'
}

码

import com.myapp.LVActivity;
import org.junit.Test;
import static org.junit.Assert.*;

public class DeviceUnitTest {
    @Test
    public void check_that_is_correct_device_name_isTrue() {
        assertThat(LVActivity.isCorrectDevice("MySpecialDevice"), is(true));
    }
}

在LVActivity:

private final static String correctName = "MySpecialDevice";
public static boolean isCorrectDevice(String deviceName) {
    return deviceName.equals(correctName);
}

错误在这里:

is(true)

错误:

Cannot resolve method is(boolean)

我正在尝试进行简单的本地单元测试.

我正在关注本教程http://developer.android.com/training/testing/unit-testing/local-unit-tests.html

Answer 1

你不想只说:

import static org.junit.Assert.*;

assertTrue(LVActivity.isCorrectDevice("MySpecialDevice"));

这是检查布尔值的更自然的表达式.

但是如果你需要使用is匹配器assertThat,你将需要这个导入:

import static org.hamcrest.CoreMatchers.*;